?HELFORD. BLATTODEA. 



47 



Madrt- 

 gnscar 



1 42. 

 i 43. 



i ^- 

 45. 



I 40. 



PeeudoderopeUia fulvornata 



P.ieiidoderopellis pctrophila 



Periplaneta americann -X- 



Periplanela alricoUis 



DeropcUis mdanophüa 



DeropeUin integerrimn 



Deropellis autraniana 



Panchlora cameruneiihis 



Nauphocta cinerea ■¥- 



Oyna vctula 



Phenacisma peltata 



Anacompsa cuculkita 



Sphecophila termitium 



Euthyrrhapha pacifica -/- 



Oxyhaloa deusta 



Oxyhalna /erreti 



(liyhaloa variabilis 



GynopcUis cryptospHa ' 



Derocalymma porcelUo 



Derocalymma lampyroidcs , 



Cyrtotrin cnpucinn 



Cyriotria luheirtilata 



I'dranphafria { ') wannomta .... 



The above table includes 64 species' and a giance at their distribution shows 

 as might have been safely predicted that the dosest affinity of this Blattid fauna is 

 found in East Africa between the 5*'i degree of latitude and the Zambezi River; 20 

 of the species are common to these two areas and I have little doubt that the 

 number would be increased if onr knovvledge of the cockroaches of the latter area 

 was greater than it is. 7 of the species are cosmopolitan or nearly so and consequently 

 afford no evidence worth taking into consideration. The relationship with the Abys- 

 sinian fauna is rather surprisingl}' remote, but can perhaps be accounted for by the 

 intervention of the xerothermic area of Somaliland and Gallaland between the damp 

 moist regions of Abyssinia and Kilimandjaro : it is significant that there is a much 

 closer relationship between the faunas of these two regions in the case of insects 

 capable of sustained flight such as the Lepidoptera Rhopalocera, Only 4 of the 

 species occur also in Africa south of the Zambesi and the entire absence from the 

 Kilimandjaro region of certain highly characteristic South African genera is in sharp 

 contrast to the fact that all the Abyssinian genera save two* are represented in the 

 Kilimandjaro region. The connection with the West African and IMascarene faunas 



' An inimaturo and undetermined .species of Lcncophaia is oniitted. 

 - One of thcsc two is Paraloboplrra. a «onus liaroly soj)arabln frnni jAiliopIrrn wliicli 

 onc spocips in thi> Kilimandjaro rejnons. 



rcprosrnlcd by 



